and looked aher like, "whoa, maybe we should be paying attention to this person. she's bad." >> it freaks me out just talking about it, the bee story. >> denise hall was one of her students. >> she actually taught me long division in second grade. that was special, because i was, like, one of the only students learning that. she said, "you're smart. you can do this." >> you can ask my kids, they'll tell you, "she was strict. she was mean." but in the end, they all knew the reason why i was doing everhing was because i believed in them and i cared about them. >> rhee said her hard work paid off in greatly improved test scores. >> over a two year period, we moved a group of students who were on average performing at 13th percentile, and when they left me at the end of two years, they were... 90 percent of them were scoring at the 90th percentile or above. >> that big a jump, 13 to 90 percent, is dramatic, but rhee said those numbers came from her principal.